A3 cm long bar of Si has a cross-sectional area of 0.2 cm? and is doped with 5 x 1017 acceptor atoms per cubic centimeter. At T- 300K, Dp = 26 cm2/s and the electron and hole lifetimes are are both 10 us. The resistance of this Si bar is 0.83 mOhms O 5.33 Ohms O 72.1 Ohms

A3 cm long bar of Si has a cross-sectional area of 0.2 cm? and is doped with 5 x 1017 acceptor atoms per cubic centimeter. At T- 300K, Dp = 26 cm2/s and the electron and hole lifetimes are are both 10 us. The resistance of this Si bar is 0.83 mOhms O 5.33 Ohms O 72.1 Ohms

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

A3 cm long bar of Si has a cross-sectional area of 0.2 cm2 and is doped with 5 x 1017 acceptor
atoms per cubic centimeter. At T= 300K, Dp = 26 cm2/s and the electron and hole lifetimes are are
both 10 us. The resistance of this Si bar is
O 0.83 mohms
5.33 Ohms
O 72.1 Ohms
O 0.188 Ohms
O 1200 Ohms

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